Trough-dumping mechanism



M. ROSENKRANZ.

THOUGH DUMPING MECHANISM.

APPLICATION FILED IAN. l3. l92l.

Patented Dec. 13, 1921.

6 SHEETS-SHEET I.

: Nah-A- Viinesses M. RUSENKRANZ.

THOUGH DUMPING MECHANISM.

APPLICATION FILED um. 13. I921.

Patented 13, 1921.

6 SHEETS-SHEET 2.

Wi'i'flesses: W M

M. ROSENKRANZ.

THOUGH DUMPING MECHANISM.

APPLICATION FILED IAN.I3,192I- 1,399,882, Patented Dec. 13, 1921.

6 SHEETSSHEET 3.

Wz'i'nesses: 2 1120672507:

M. ROSENKRANZ.

TROUGH DUMPING MECHANISM.

nrrucmon FILED IAN. 13. I92].

1,399,882, Patented D66. 13, 1921.

6 SHEETS-SHEET 4-- M. RUSENKRANZ.

THOUGH DUMPING MECHANISM.

APPLICATION FILED um. 13. 192:.

Patented Dec 13, 1921 6 SHEETS-SHEET 5 Invenfor:

nine-9.912s: M

M. HOSENKHANZ.

TROUGH DUMPING MECHANISM.

APPLICATION FILED JAN. 13. 1921.

1,399,882, Patented Dec. 13, 1921.

6 SHEETS-SIRE] 6.

Winesses:

To all whomit may eoncewz' Be it known that I, Max Rosmcnnknz, a citizen of the United States, and resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Trough-Dumping Mechanisms; of which the following is a specification.

This invention relates to pipe cooling tables, and more particularly to automatic li fts for the trough: covers-thereof, and has for one of its ob ects the provision ofsuch will be automatic in operation a device that construction and composed oi yet simple in few parts.

Heretofore, various methods have been devised for automatically operating thecow ers of dump troughs. Automatic circuit make and break devices in combination with suitable magnetic lifts" have been employed, but were unsuccessful due to the heat and wear that a cover lifiti's' necessarily subjected to:

Various'fluid operated devices were" tried but were found wanting, and discarded:

At the time of this invention the practice had reverted back to the old and primitive method of operating the cover liftby means of compressed air actuated leverscontrolled by hand valves.

Elie hand controlled compressed air method is superior to the automatic means heretofore devised, since it'is not" liable to get out of order. However i-t had its faultsas do all methods depending on manual operation. The operator was compelled to be alert at all times and to operate the control valves several times in a single minute; If he delayed a fraction of a second it causes a jam, and if he closes the cover afraction of a second too soonhe pinches a pipe under the cover and causes a jam." hese jams compelled the; mill to shut down and caused a loss of much valuableunateriel and time.

The present apparatus is automatic and certain in operation, and does not depend in any manner upon a human agency for operation or control and, therefore, has none ofthe objectionable features of the previous methods.

Various other objects and advantages will be brought out in the following spocifi'csn.

gpeciflcation of Letters Patent. nppl mucniiea mass 13, min.

intense Patented 1390. 13, Serial Ilo; 488E858:

tion and claims, and illustrated in the m2: companying drawings, in which- Figure l is a plan showin a portion of a pipe cooling table, having a dumping trough constructed in accordance with my invere tion.

Fig. 2 is a rear elevation of the cor'istrifie tion of Fig. 1.

Fig. 3 is a sectional elevation on thellxie III-"III of Fig. 1.

Fig. 4 is IV'='IV of Flg. 1.

Fig. 5 is a detail sectional elevation showing the dump trough with the cover lifted to discharge a pipe. v

Fig. 6 is a plan of a slightly modified cinbodiment of my invention.

Fig. 7 is a rear elevation of the construe tion of Fig. 6.

Referring to the numerals designate like arts throughout the several views thereof. .lhe dump trough 2 issupported upon a plurality of adjustable; stands 3 secured in position to the rear of the cooling table 4 and in line with the The space between the trough 2 Me anie- 4 is bridged by plates usunh prabtice.

Referring particularly to Figs. 1,- 2, and 3', the numeral 7 designates the trou which is connected to the trough a on its rear edge by a plurality of hinge mem' ers 8. Midway between its ends the cover is provided with an operating or lifting lever 9 which is ful-crumed in the'forked bracket or skidso as is' t he 10 secured to the trough. The lever ii -is connected by means a. link 11 to" as piston rod 12 of an air cylinder 13'.

A rocker block 14 is adj ustably mounted on the" forward end of a counter weighted lever 16 which is pivotally mounted in the forked bracket 15 adjacent the end'of the trough farthest away from the rolls 5. The lever 16 has a sliding connection with the vertically movable valve stem plunger 17' of the compressed air inlet valve 18 which con trols the flow of air to the air cylinder '13.- The valve 18 is a one-way valve and iseona sectional elevation on" the line" drawings, like" referent!!!" well known construction;

h cover nected with a pipe 19 leading from a suitable source of air supply and is also connected with cylinder 13 by a pipe 20.

The rocker block 14 has a longitudinally tapered recess 14* in its under face and is adapted to be operated by the pipe when it passes along the trough. The pipe entering under the tapered recess 1 1 will have a wedging action, raising the rocker and forcing the plunger 17 down, opening the valve and allowing the-air to flow into the cylinder 13, thus opening or raising the trough cover and releasing the pipe onto the table 4 when the rocker 14 will drop and return the valve.

A second rocker block 21 is arranged adjacent the forward end or the roll end of the table to control the exhaust of the air from cylinder 13 and the lowering of the cover 7.

l The block 21 is identical with the block 14, has its bottom face provided with a recess 21, and is adjustably mounted on a counterweighted lever 23 fulcrumed at 22, and having a sliding connection with he plunger 2 1 of an exhaust valve 25 connected by pipe 26 to the cylinder 13.

The valve 25 is just opposite 18 and is closed rocker 21.

Just as the hot pipe asses through the rolls 5 it will pass into t e recess 21 on the bottom of the rocker 21, raising it and closing the exhaust valve 25, and as the pipe passes out from under the rocker 21, the rocker will drop of its own weight, lifting the plunger 24 and opening the exhaust valve. 25.

The effect of operation of the rocker 21 is that the trough cover 7 can not fall until after the pipe has passed clear of the rolls 5, and, therefore, the danger of jams is entirely eliminated.

The general operation'is as follows-A pipe in passing from the rolls 5 will operate the rocker 21 and close the exhaustvalve 25. It will then continue along the trough 2 under the cover 7 until it passes under the rocker 14:, when it will operate the inlet valve 18 and allow compressed air to flow into the cylinder 13, forcing down the piston rod 12 and raisin the cover 7. The cover will not fall until after the'pipehas passed from under the rocker 21 and permitted it to drop, thus raising the plunger 24 and opening the exhaust valve25.

In 'Figs.'&,' 5, and 6 I have shown a slightly modified arrangement in which only the one rocker'ls is used, connected to a two-way valvei 2610 raise and lower the cover 7 instead of operating the one-way inlet valve 18 to only raise the cover. The valve 26 is adapted to receive air through the pipe 19 and is connected with the cylinder 13 by the pipe 20, as is the valve 18. When the rocker to the valve by the lifting of the 14 is lowered it opens the valve 26 to the atmosphere through the exhaust port 27, thus releasing the air pressure from the cylinder 13 and allowing the cover 7 to drop.

The operation of this last described construction is similar to that previously (le scribed, with the exception that the one rocker operates a single valve which controls both the inlet and outlet or exhaust of the cylinder 13.

While I have illustrated and described these two embodiments of my invention with great care as to details, it will be expressly understood that I do not wish to be limited to the specific construction set forth, since various changes in design and combination ofparts may be made b those skilled in the art, without departing rom the spirit of my invention as defined in the appended claims.

I claim 1. The combination trough of a pipe cooling table having a hinged cover, of a fluid actuated piston for operating said cover, a control valve for controlling the flow of fluid to said piston, a lever fulcrumed intermediate its ends on said dumping trough, and having one end connected to said valve, and a rocker block on the other end of said lever, said rocker block having a tapered recess therein adapted to receive the pipe passing under said cover, thereby rocking said lever and actuating said valve.

.2. The combination with the dumping trough of a pipe cooling table having a 100 hinged cover, of a fluid actuated piston and lever mechanism for operating said cover ,a control valve mounted on said trough for controlling the flow of fluid to said piston,

a lever fulcrumed intermediate its ends on 105 said trough and having a sliding connection adjacent its one end with said valve, and a rocker block adjustably mounted on the other end of said lever, said rocker block having a tapered recess in its under face adapted to 110 receive the pipe passing under said cover, thereby rocking said lever and actuating said valve.

3. The combination with the dumping trough of a pipe cooling table having a 116 hinged cover, of a fluid actuated piston for operatingsaid cover, and a valve and lever mechanism adjacent each end of said trough adapted to beactuated by the pipe to be cooled for controlling the flow of fluid to and 120 from said piston.

4. The combination with the dumping trough of a pipe cooling table having a hinged cover, of a fluid actuated piston for oserating said cover, an inlet control valve 125 a jacent one end of said trough, lever mechanism for operating said valve, an exhaust control valve adjacent the other end of said trough, and lever mechanism for operating said last named valve, said lever mechanism 130 with the dumping being adapted to be automatically and indebeing fulcrumed intermediate their ends in pendently operated by the pipe in its passage forked hearings on said trough and having along said trough. one end slidably connected to said valves, 15 5. The combination with the dumping and a rocker block on the other end of each trough of a pipe cooling table having a of said levers, said rocker blocks having a hinged cover, of a fluid actuated piston for tapered recess therein adapted to receive the operating said cover, a valve adjacent one pipe passing under said cover, thereby rockend of said trough for controlling the inlet ing said levers and actuating said levers. 20 of fluid to said piston, a second valve adja- In testimony whereof, I have hereunto set cent the other end of said trough for controlmy hand. ling the exhaust from said piston, a lever adjacent each end of said trough, said levers MAX ROSENKRANZ. 

